When making, it is best to use immature fruit. Fruits are cooked by their own enzymes before they are fully ripe, so immature fruits contain a lot of enzymes. Immature fruit is the best time to brew enzymes. The more enzymes there are, the more enzymes there will be in the fruit, which can prevent diseases. If it is organic fruit, as long as it is washed, you can add the skin together. Cause the skin contains more enzymes. Of course, there are kiwis, oranges and so on. It is difficult to clean, and it is not recommended to ferment peels with strong pungent smell.